18053492 has 6 divisors (see below), whose sum is σ = 31593618. Its totient is φ = 9026744.

The previous prime is 18053461. The next prime is 18053509. The reversal of 18053492 is 29435081.

It can be written as a sum of positive squares in only one way, i.e., 17926756 + 126736 = 4234^2 + 356^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2256683 + ... + 2256690.

It is an arithmetic number, because the mean of its divisors is an integer number (5265603).

Almost surely, 2^18053492 is an apocalyptic number.

It is an amenable number.

18053492 is a deficient number, since it is larger than the sum of its proper divisors (13540126).

18053492 is a wasteful number, since it uses less digits than its factorization.

18053492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4513377 (or 4513375 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 18053492 is about 4248.9401031316. The cubic root of 18053492 is about 262.3334913794. Note that the first 3 decimals are identical.

The spelling of 18053492 in words is "eighteen million, fifty-three thousand, four hundred ninety-two".